movingaveragedemo.java

很好的制作统计图表的代码

// Decompiled by DJ v3.7.7.81 Copyright 2004 Atanas Neshkov  Date: 7/18/2005 5:13:50 PM
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// Decompiler options: packimports(3) 

package org.jfree.chart.demo;

import java.awt.Dimension;
import java.text.SimpleDateFormat;
import org.jfree.chart.*;
import org.jfree.chart.axis.DateAxis;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
import org.jfree.data.time.*;
import org.jfree.data.xy.XYDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

public class MovingAverageDemo extends ApplicationFrame
{

    public MovingAverageDemo(String s)
    {
        super(s);
        String s1 = "Legal & General Unit Trust Prices";
        XYDataset xydataset = createDataset();
        JFreeChart jfreechart = ChartFactory.createTimeSeriesChart(s1, "Date", "Price Per Unit", xydataset, true, true, false);
        XYPlot xyplot = (XYPlot)jfreechart.getPlot();
        org.jfree.chart.renderer.xy.XYItemRenderer xyitemrenderer = xyplot.getRenderer();
        if(xyitemrenderer instanceof XYLineAndShapeRenderer)
        {
            XYLineAndShapeRenderer xylineandshaperenderer = (XYLineAndShapeRenderer)xyitemrenderer;
            xylineandshaperenderer.setShapesVisible(true);
            xylineandshaperenderer.setShapesFilled(true);
        }
        DateAxis dateaxis = (DateAxis)xyplot.getDomainAxis();
        dateaxis.setDateFormatOverride(new SimpleDateFormat("MMM-yyyy"));
        ChartPanel chartpanel = new ChartPanel(jfreechart);
        chartpanel.setPreferredSize(new Dimension(500, 270));
        setContentPane(chartpanel);
    }

    public XYDataset createDataset()
    {
        TimeSeries timeseries = new TimeSeries("L&G European Index Trust", org.jfree.data.time.Month.class);
        timeseries.add(new Month(2, 2001), 181.80000000000001D);
        timeseries.add(new Month(3, 2001), 167.30000000000001D);
        timeseries.add(new Month(4, 2001), 153.80000000000001D);
        timeseries.add(new Month(5, 2001), 167.59999999999999D);
        timeseries.add(new Month(6, 2001), 158.80000000000001D);
        timeseries.add(new Month(7, 2001), 148.30000000000001D);
        timeseries.add(new Month(8, 2001), 153.90000000000001D);
        timeseries.add(new Month(9, 2001), 142.69999999999999D);
        timeseries.add(new Month(10, 2001), 123.2D);
        timeseries.add(new Month(11, 2001), 131.80000000000001D);
        timeseries.add(new Month(12, 2001), 139.59999999999999D);
        timeseries.add(new Month(1, 2002), 142.90000000000001D);
        timeseries.add(new Month(2, 2002), 138.69999999999999D);
        timeseries.add(new Month(3, 2002), 137.30000000000001D);
        timeseries.add(new Month(4, 2002), 143.90000000000001D);
        timeseries.add(new Month(5, 2002), 139.80000000000001D);
        timeseries.add(new Month(6, 2002), 137D);
        timeseries.add(new Month(7, 2002), 132.80000000000001D);
        TimeSeries timeseries1 = MovingAverage.createMovingAverage(timeseries, "Six Month Moving Average", 6, 0);
        TimeSeriesCollection timeseriescollection = new TimeSeriesCollection();
        timeseriescollection.addSeries(timeseries);
        timeseriescollection.addSeries(timeseries1);
        return timeseriescollection;
    }

    public static void main(String args[])
    {
        MovingAverageDemo movingaveragedemo = new MovingAverageDemo("Moving Average Demo 1");
        movingaveragedemo.pack();
        RefineryUtilities.centerFrameOnScreen(movingaveragedemo);
        movingaveragedemo.setVisible(true);
    }
}